condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.064483 0.0 0.193449 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.14131833333333335 0.0 0.423955